#47   If the Muhlenberg Library is open a total of 50 hours a week and there are 168 hours in a week, what percent of hours is the library opened during the week?

Fascinating fact:  The branch—an elegant three-story, brick and limestone structure—is named for William Augustus Muhlenberg, the first rector of Chelsea's Church of the Holy Communion.   And has been opened for almost a century. 

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